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String Manipulation

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Solution Architect

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This custom activity is composed of 7 string matching algorithms and 1 helper tool activity (string clean-up).

  

The following activities are included in the package:

· Damerau Levenshtein

· Dice Coefficient

· Hamming Distance

· Jaccard Similarity

· Jaro Distance

· Jaro Winkler

· Levenshtein

· String Clean-up (helper activity tool)

This group of custom activities (String Algorithms) serve the purpose of reducing development time for the user intending to implement one or more string matching logics in their project.

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Visual Basic

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This group of custom activities (String Matching Algorithms) serve the purpose of reducing development time for the user intending to implement one or more string matching logic in their project.

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**The following activities are included in this package:**

Edit / Distance Based

- Levenshtein
- Damerau Levenshtein (Restricted and Default)
- Weighted Levenshtein
- Euclidean Distance
- Hamming Distance
- Jaro Distance
- Jaro Winkler
- Chapman Mean Length
- Chapman Length Deviation
- Minkowski Distance 

Sequence / Alignment Based

- Smith Waterman
- Smith Waterman Gotoh
- Smith Waterman Gotoh Windowed Affine
- Needleman–Wunsch
- Ratcliff Obershelp
- Longest Common Subsequence (LCS) 

Token Based

- Jaccard Index
- Sørensen–Dice coefficient
- Block Distance
- Tversky Index
- Overlap coefficient.
- Matching Coefficient
- Cosine Similarity
- Q-Grams
- N-Grams 

Hybrid Algorithms

- SIFT4
- Monge Elkan
- Generalized Compression Distance

Phonetic / Sound Based

- Soundex
- Metaphone
- Caverphone
- Double Metaphone
- Match Rating approach 

String Hash Based

- SimHash
- MinHash 

Fuzzy Wuzzy Algorithms

- Fuzzy Ratio

1. Simple Ratio
2. Partial Ratio
3. Token Sort Ratio
4. Token Set Ratio
5. Token Initialism Ratio
6. Weighted Ratio

- Fuzzy Token Abbreviation Ratio
- Fuzzy Process Extraction 

Extension Activities

- Get Similarities.
- Get Minimum Similarity.
- Get Minimum Similarities .
- Get Maximum Similarity.
- Get Maximum Similarities.
- Get Threshold Matches (Contains Fuzzy) 

String Cleanup Helpers

- String Cleanup
- HTML Tag Cleanup
- Unicode Normalize
- Clean Accent Characters
- Graphics Cleanup
- Whitespace Cleanup
- Other Cleanup

Note: Some dependencies used are bundled in the package, hence you do not need to install any other package except the current one downloaded from Marketplace.

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Version	Release Date	Download Link
4.0.0	January 10, 2025
Enhanced activity user interface ('Test String Similarity' button that lets you get the matching percentage during design time without running the workflow, and Resource download buttons + Info buttons for a quick view of every activity/algorithm) Minor code optimizations for performance.
3.0.0	January 8, 2025
Package is Cross Platform compatible (Both Windows and Cross-Platform) Added more than 40 string matching algorithms in this activity pack Added extension methods and string cleanup helpers Read documentation for the Fuzzy matching and Extension methods
2.0.0	January 11, 2024
Package is Windows Projects compatible with UiPath Studio. (.net core 6.0)
1.1.0	February 17, 2022
Bug Fix release : Minor description updates, string cleanup bug fix, Jaro Winkler full four characters padding update (Number of common characters appearing in both strings increased to maximum 4 whereas previously it was set to 2).
1.0.0	February 2, 2022
First release

String Similarity Algorithms (Matching Percentage)